U 2013/11/28 09:06:09.411796 6X.2X1.4.1X5:5060 -> 2X8.1X1.3X.2X:5060
INVITE sip:+18X88X441X1@2X8.1X1.3X.2X SIP/2.0.
Record-Route: <sip:6X.2X1.4.1X5;lr=on;ftag=gK0662d671>.
Record-Route: <sip:6X.2X1.4.9X;lr=on;ftag=gK0662d671>.
Accept: application/sdp.
Allow: INVITE,ACK,CANCEL,BYE.
Via: SIP/2.0/UDP 6X.2X1.4.1X5;branch=z9hG4bKcff3.da8920b2.0.
Via: SIP/2.0/UDP 6X.2X1.4.9X;branch=z9hG4bKcff3.66c425c4.0.
Via: SIP/2.0/UDP 192.168.47.68:5060;branch=z9hG4bK06Bbcfc5fb404048790.
From: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
To: <sip:+18X88X441X1@6X.2X1.4.9X>.
Call-ID: 1443253238_103264169@192.168.47.68.
CSeq: 525 INVITE.
Max-Forwards: 47.
Contact: <sip:+18X16X620X3@192.168.47.68:5060>.
Content-Length: 327.
Content-Disposition: session; handling=required.
Content-Type: application/sdp.
Remote-Party-ID: <sip:+18X16X620X3@192.168.47.68:5060>;privacy=off;screen=no.
.
v=0.
o=Sonus_UAC 30934 15833 IN IP4 192.168.47.68.
s=SIP Media Capabilities.
c=IN IP4 6X.2X1.4.9X.
t=0 0.
m=audio 5770 RTP/AVP 0 18 96 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:96 iLBC/8000.
a=fmtp:96 mode=30.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=sendrecv.
a=maxptime:30.

U 2013/11/28 09:06:09.413388 2X8.1X1.3X.2X:5060 -> 6X.2X1.4.1X5:5060
SIP/2.0 183 Session Progress.
Record-Route: <sip:6X.2X1.4.1X5;lr=on;ftag=gK0662d671>.
Record-Route: <sip:6X.2X1.4.9X;lr=on;ftag=gK0662d671>.
Via: SIP/2.0/UDP 6X.2X1.4.1X5;branch=z9hG4bKcff3.da8920b2.0;rport=5060.
Via: SIP/2.0/UDP 6X.2X1.4.9X;branch=z9hG4bKcff3.66c425c4.0.
Via: SIP/2.0/UDP 192.168.47.68:5060;branch=z9hG4bK06Bbcfc5fb404048790.
From: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
To: <sip:+18X88X441X1@6X.2X1.4.9X>;tag=bbd932f8f9dbf9743f9b7cadcbf622ac.10eb.
Call-ID: 1443253238_103264169@192.168.47.68.
CSeq: 525 INVITE.
Server: kamailio (4.0.4 (x86_64/linux)).
Content-Length: 0.
.

U 2013/11/28 09:06:09.413936 2X8.1X1.3X.2X:5060 -> 6X.2X1.4.1X5:5060
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 6X.2X1.4.1X5;branch=z9hG4bKcff3.da8920b2.0;rport=5060.
Via: SIP/2.0/UDP 6X.2X1.4.9X;branch=z9hG4bKcff3.66c425c4.0.
Via: SIP/2.0/UDP 192.168.47.68:5060;branch=z9hG4bK06Bbcfc5fb404048790.
From: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
To: <sip:+18X88X441X1@6X.2X1.4.9X>.
Call-ID: 1443253238_103264169@192.168.47.68.
CSeq: 525 INVITE.
Server: kamailio (4.0.4 (x86_64/linux)).
Content-Length: 0.
.

U 2013/11/28 09:06:10.672460 2X8.1X1.3X.2X:5060 -> 6X.2X1.4.1X5:5060
SIP/2.0 180 Ringing.
Via: SIP/2.0/UDP 6X.2X1.4.1X5;rport=5060;branch=z9hG4bKcff3.da8920b2.0.
Via: SIP/2.0/UDP 6X.2X1.4.9X;branch=z9hG4bKcff3.66c425c4.0.
Via: SIP/2.0/UDP 192.168.47.68:5060;branch=z9hG4bK06Bbcfc5fb404048790.
Record-Route: <sip:2X8.1X1.3X.2X;lr;did=873.7d91;nat=yes>.
Record-Route: <sip:6X.2X1.4.1X5;lr;ftag=gK0662d671>.
Record-Route: <sip:6X.2X1.4.9X;lr;ftag=gK0662d671>.
Call-ID: 1443253238_103264169@192.168.47.68.
From: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
To: <sip:+18X88X441X1@6X.2X1.4.9X>;tag=3pOAt1HRTOy9Xfi4Rsbbz9gf73MsuXge.
CSeq: 525 INVITE.
Contact: <sip:1X5.6X.1X6.2X3:9439>.
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS.
Content-Length: 0.
.

U 2013/11/28 09:06:12.931892 2X8.1X1.3X.2X:5060 -> 6X.2X1.4.1X5:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 6X.2X1.4.1X5;rport=5060;branch=z9hG4bKcff3.da8920b2.0.
Via: SIP/2.0/UDP 6X.2X1.4.9X;branch=z9hG4bKcff3.66c425c4.0.
Via: SIP/2.0/UDP 192.168.47.68:5060;branch=z9hG4bK06Bbcfc5fb404048790.
Record-Route: <sip:2X8.1X1.3X.2X;lr;did=873.7d91;nat=yes>.
Record-Route: <sip:6X.2X1.4.1X5;lr;ftag=gK0662d671>.
Record-Route: <sip:6X.2X1.4.9X;lr;ftag=gK0662d671>.
Call-ID: 1443253238_103264169@192.168.47.68.
From: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
To: <sip:+18X88X441X1@6X.2X1.4.9X>;tag=3pOAt1HRTOy9Xfi4Rsbbz9gf73MsuXge.
CSeq: 525 INVITE.
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS.
Contact: <sip:1X5.6X.1X6.2X3:9439>.
Supported: replaces, 100rel, timer, norefersub.
Content-Type: application/sdp.
Content-Length:238.
.
v=0.
o=- 3594636366 3594636367 IN IP4 2X8.1X1.3X.2X.
s=pjmedia.
i=(o=IN IP4 10.0.193.243).
c=IN IP4 1X5.6X.1X6.2X3.
t=0 0.
m=audio 10246 RTP/AVP 0.
c=IN IP4 2X8.1X1.3X.2X.
a=rtcp:10247.
a=sendrecv.
a=rtpmap:0 PCMU/8000.
a=nortpproxy:yes.

U 2013/11/28 09:06:12.960342 6X.2X1.4.1X5:5060 -> 2X8.1X1.3X.2X:5060
ACK sip:1X5.6X.1X6.2X3:9439 SIP/2.0.
Record-Route: <sip:6X.2X1.4.1X5;lr=on;ftag=gK0662d671>.
Record-Route: <sip:6X.2X1.4.9X;lr=on;ftag=gK0662d671>.
Via: SIP/2.0/UDP 6X.2X1.4.1X5;branch=z9hG4bKcff3.da8920b2.2.
Via: SIP/2.0/UDP 6X.2X1.4.9X;branch=z9hG4bKcff3.66c425c4.2.
Via: SIP/2.0/UDP 192.168.47.68:5060;branch=z9hG4bK06Bbd0344f60e48a125.
From: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
To: <sip:+18X88X441X1@6X.2X1.4.9X>;tag=3pOAt1HRTOy9Xfi4Rsbbz9gf73MsuXge.
Call-ID: 1443253238_103264169@192.168.47.68.
CSeq: 525 ACK.
Max-Forwards: 68.
Route: <sip:2X8.1X1.3X.2X:5060;lr;did=873.7d91;nat=yes>.
Content-Length: 0.
.

------------------------ call goes on a for a while ---------------------------

U 2013/11/28 09:06:24.358786 2X8.1X1.3X.2X:5060 -> 6X.2X1.4.1X5:5060
BYE sip:+18X16X620X3@6X.2X1.4.1X5:5060 SIP/2.0.
Via: SIP/2.0/UDP 2X8.1X1.3X.2X;branch=z9hG4bKbb1b.267a7326.0.
Via: SIP/2.0/UDP 1X5.6X.1X6.2X3:9439;rport=9439;branch=z9hG4bKPj6XR.AckX-G8lRIN4ZuDvjaPB6ZnUpHUa.
Max-Forwards: 16.
From: <sip:+18X88X441X1@6X.2X1.4.9X>;tag=3pOAt1HRTOy9Xfi4Rsbbz9gf73MsuXge.
To: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
Call-ID: 1443253238_103264169@192.168.47.68.
CSeq: 5685 BYE.
Route: <sip:6X.2X1.4.1X5;lr;ftag=gK0662d671>.
Route: <sip:6X.2X1.4.9X;lr;ftag=gK0662d671>.
User-Agent: CSipSimple_m0-16/r2330.
Content-Length: 0.
.

U 2013/11/28 09:06:24.372741 6X.2X1.4.1X5:5060 -> 2X8.1X1.3X.2X:5060
SIP/2.0 500 Invalid routeset.
Via: SIP/2.0/UDP 2X8.1X1.3X.2X;branch=z9hG4bKbb1b.267a7326.0.
Via: SIP/2.0/UDP 1X5.6X.1X6.2X3:9439;rport=9439;branch=z9hG4bKPj6XR.AckX-G8lRIN4ZuDvjaPB6ZnUpHUa.
From: <sip:+18188244111@6X.2X1.4.9X>;tag=3pOAt1HRTOy9Xfi4Rsbbz9gf73MsuXge.
To: <sip:+18X16X620X3@192.168.47.68;isup-oli=0>;tag=gK0662d671.
Call-ID: 1443253238_103264169@192.168.47.68.
CSeq: 5685 BYE.
Server: Bandwidth.com CLEC.
Content-Length: 0.
.

Kelvin Chua